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In a certain English Class

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In a certain English Class [#permalink] New post 31 Oct 2010, 04:12
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In a certain English Class, 1/4 of the number of girls is equal to 1/6 of the total number of students. What is the ratio of the number of boys to the number of girls in the class?
A) 1 to 4
B) 1 to 3
(C) 1 to 2
(D) 2 to 3
(E) 2 to 1
[Reveal] Spoiler: OA

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Re: In a certain English Class [#permalink] New post 31 Oct 2010, 05:13
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monirjewel wrote:
In a certain English Class, 1/4 of the number of girls is equal to 1/6 of the total number of students. What is the ratio of the number of boys to the number of girls in the class?
A) 1 to 4
B) 1 to 3
(C) 1 to 2
(D) 2 to 3
(E) 2 to 1


1/4 girls = 1/6 total
=> girls = 2/3 total

this implies, number of boys = 1/3 total

ratio of boys/girls = (1/3)/(2/3)
= 1/2

Answer : (C) 1 to 2
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Re: In a certain English Class [#permalink] New post 09 Nov 2010, 08:28
Consider a number with 4 and 6 as its factors- 24.

now 1/6 th of 24 = 1/4 th of girls------> 4=(1/4)g
So - Girls =16 and Boys=8
So ratio= 8/16 = 1/2
Re: In a certain English Class   [#permalink] 09 Nov 2010, 08:28
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